Table 3.

Across Session Paired T-Tests of Diffusion Tensor Imaging (DTI) Scalars for Regions of Interests (ROIs)

Session 1 to Session 2 (S2 - S1; N = 49)
	FA		AD		RD		MD
ROIs	t-value	p	t-value	p	t-value	p	t-value	p
Corpus Callosum
Body	3.14	0.0029	1.06	0.2926	−2.99	0.0044ϯ	−1.72	0.0921
Genu	0.95	0.3455	−1.64	0.1075	−1.42	0.1607	−2.07	0.0437ϯ
Splenium	−0.80	0.4278	−0.72	0.473	0.49	0.6276	−0.22	0.8235
Fornix	4.19	0.0001	−4.85	<0.0001	−4.99	<0.0001	−5.09	<0.0001
Anterior Fornix	−1.41	0.1652	−3.08	0.0034ϯ	−1.00	0.3216	−1.95	0.0565
Posterior Fornix	5.07	<0.0001	−4.86	<0.0001	−5.30	<0.0001	−5.28	<0.0001
Session 2 to Session 3 (S3 - S2; N = 31)
	FA		AD		RD		MD
ROIs	t-value	p	t-value	p	t-value	p	t-value	p
Corpus Callosum
Body	−1.04	0.3055	−0.94	0.3555	0.54	0.5929	−0.22	0.8253
Genu	−0.54	0.5959	−1.02	0.3145	0.02	0.9829	−0.51	0.6171
Splenium	−1.96	0.0601	−0.77	0.4486	1.52	0.1407	0.37	0.7119
Fornix	−1.32	0.1963	−0.05	0.9588	0.83	0.4125	0.57	0.5746
Anterior Fornix	−1.23	0.2294	−0.01	0.9960	0.86	0.3944	0.59	0.5578
Posterior Fornix	−1.19	0.2456	0.02	0.9847	0.74	0.4661	0.53	0.6032
Session 1 to Session 3 (S3 – S1; N = 31)
	FA		AD		RD		MD
ROIs	t-value	p	t-value	p	t-value	p	t-value	p
Corpus Callosum
Body	0.94	0.3563	−0.16	0.8720	−1.29	0.2056	−1.28	0.2123
Genu	−0.12	0.9056	−1.64	0.1114	−0.69	0.4926	−1.44	0.1616
Splenium	−2.62	0.0140ϯ	−1.28	0.2092	1.67	0.1054	0.05	0.9606
Fornix	1.01	0.3189	−3.13	0.0040ϯ	−2.40	0.0233ϯ	−2.70	0.0114ϯ
Anterior Fornix	−2.69	0.0117ϯ	−2.05	0.0497ϯ	0.22	0.8299	−0.71	0.4827
Posterior Fornix	1.80	0.0829	−2.97	0.0059ϯ	−2.63	0.0134ϯ	−2.80	0.0091ϯ

Note. AD = axial diffusivity; FA = fractional anisotropy; MD = mean diffusivity; RD = radial diffusivity. Bold = significant at p < .05 level.

^ϯValues that do not remain significant after set-wise Bonferroni correction (p ≤ 0.003125).

S2 - S1: values at session 2 subtracted from values at session 1; S3 – S2: values at session 3 subtracted from values at session 2; S3 – S1: values at session 3 subtracted from values at session 1.